Thanks Bob.

Good explanation. Ihave experienced this with most engines as I do a lot of test stand running testing various props, fuels, etc. The Rossi performs very good in the air set down about 600-800 rpm from peak and performs good in the air with no leaning in the vertical maneuvers. Good pressure from the Jett Stream also helps. Now I just have to wait for Rossi to respond to the idle needle/spray bar issue.

Danny